DAS provides a Real-time Monitoring dashboard for you to view the real-time performance of all connected database instances. If your business is in a big promotion or is experiencing a major change, you can use this feature to check the health of databases in real time.

Background information

A database instance is connected to DAS and is in the Accessed state.

For more information about how to access a database instance, see

Metric

The following figure shows the Real-time Monitoring page.
Note The following table lists the metrics for MySQL databases that are displayed on the Real-time Monitoring page of DAS.

You can click Metric Description on the Real-time Monitoring page to view the descriptions of metrics.

Metric Description
QPS The number of SQL statements executed per second.
TPS The number of write (insert, delete, and update) operations per second.
Current Conn The number of all connections to the current database.
Active Conn The number of active connections to the current database.
Network In(KB) The inbound traffic to the database per second.
Network Out(KB) The outbound traffic from the database per second.
Buffer Hit Ratio(%) The hit ratio of the InnoDB buffer pool.

Procedure

  1. Log on to the DAS console.
  2. In the left-side navigation pane, click Real-time Monitoring.
    Note The Real-time Monitoring page displays real-time monitoring data of all database instances in the Accessed state. The page is automatically refreshed.